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@article{DAN_1990_313_5_a3, author = {A. V. Pogorelov}, title = {H. {Busemann's} $G$-spaces with a {Riemannian} metric}, journal = {Doklady Akademii Nauk}, pages = {1044--1046}, publisher = {mathdoc}, volume = {313}, number = {5}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_313_5_a3/} }
A. V. Pogorelov. H. Busemann's $G$-spaces with a Riemannian metric. Doklady Akademii Nauk, Tome 313 (1990) no. 5, pp. 1044-1046. http://geodesic.mathdoc.fr/item/DAN_1990_313_5_a3/